Calculate the mean for the following distribution:

x :	5	6	7	8	9
y :	4	8	14	11	3

2

Find the mean of the following data:

x:	19	21	23	25	27	29	31
y:	13	15	16	18	16	15	13

3

If the mean of the following data is 20.6. Find the value of p.

x:	10	15	p	25	35
y:	3	10	25	7	5

4

If the mean of the following data is 15, find p.

x :	5	10	15	20	25
y :	6	p	6	10	5

5

Find the value of p for the following distribution whose mean is 16.6

x :	8	12	15	p	20	25	30
y :	12	16	20	24	16	8	4